<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <script src="build/react.js"></script>
    <script src="build/react-dom.js"></script> 
    <script src="build/browser.min.js"></script>
    <style>
    #root{
      color:#f9ffe2;
      background:#c1f4ff;
      text-align: center;
    }
    
    </style>
  </head>
  <body>
  <div id="root"></div>
  <script type="text/babel">
      ReactDOM.render(<h1>asdfasdf</h1>,document.getElementById("root")
      )
  </script>
  </body>
</html>